﻿/************************************************************************

   Extended Silverlight Toolkit

   Copyright (C) 2010-2012 Xceed Software Inc.

   This program is provided to you under the terms of the Microsoft Public
   License (Ms-PL) as published at http://extendedsilverlight.codeplex.com/license

   Please purchase a commercial version of this toolkit if you are using
   it in a commercial product. The commercial versions support the project,
   and also include more features for each control, priority support,
   source code, updates, removed watermark, and a proprietary license.

   Visit http://xceed.com and follow @datagrid on Twitter.

  **********************************************************************/

using System.Windows;

namespace Xceed.Silverlight.DataGrid
{
  #region Metadata

  [TemplateVisualState( GroupName = "ColumnVisibilityStates", Name = "Scrolling" )]
  [TemplateVisualState( GroupName = "ColumnVisibilityStates", Name = "Fixed" )]

  #endregion // Metadata

  public class ColumnBackgroundControl : ControlBase, IColumnElement
  {
    internal static readonly string ColumnVisibilityStateScrolling = "Scrolling";
    internal static readonly string ColumnVisibilityStateFixed = "Fixed";

    public ColumnBackgroundControl()
      : base()
    {
      this.DefaultStyleKey = typeof( ColumnBackgroundControl );
      this.VisualStateHelper = new VisualStateHelper( this );
    }

    #region ParentColumnContainer Property

    internal ColumnContainer ParentColumnContainer
    {
      get;
      private set;
    }

    #endregion ParentColumnContainer Property

    #region ParentHost Property

    internal IColumnElementHost ParentHost
    {
      get;
      private set;
    }

    #endregion ParentHost Property

    #region VisualState Property (Internal)

    internal VisualStateHelper VisualStateHelper
    {
      get;
      private set;
    }

    #endregion VisualState Property

    public override void OnApplyTemplate()
    {
      base.OnApplyTemplate();
      this.VisualStateHelper.ApplyVisualStates();
    }

    internal void SetColumnVisibilityStates( string state, bool useTransitions )
    {
      this.VisualStateHelper.GoToVisibilityState( state, useTransitions );
    }

    #region IColumnElement Interface

    ColumnContainer IColumnElement.ParentColumnContainer
    {
      get
      {
        return this.ParentColumnContainer;
      }
    }

    IColumnElementHost IColumnElement.ParentHost
    {
      get
      {
        return this.ParentHost;
      }
    }

    void IColumnElement.SetParentColumnContainer( ColumnContainer columnContainer )
    {
      this.ParentColumnContainer = columnContainer;
    }

    void IColumnElement.SetParentHost( IColumnElementHost parentHost )
    {
      this.ParentHost = parentHost;
    }

    #endregion IColumnElement Interface
  }
}
